Can a person be truly evil or can anyone, given the right circumstances, be pushed to commit evil acts? Webster (Psychology department) will discuss historical analyses, field studies, and even controlled lab studies to help shed light on the psychological processes involved in radical evil. Lunch will be provided at 11:30 a.m., while the speaker will begin at 12 p.m. Cost is $8 for arboretum members and $9 for non-members. Go online to gustavustickets.com to register.